South Africa’s Caster Semenya won Olympic gold in the 800m but Great Britain’s Lynsey Sharp missed out on a medal as she finished sixth.

Semenya, 25, set a national record to win in one minute 55.28 seconds and finish well clear of silver medallist Francine Niyonsaba of Burundi.

Kenya’s Margaret Nyairera Wambui took the bronze medal, while Scot Sharp set a new personal best of 1:57:69.

Semenya, who has been subject to gender testing, won silver in 2012.

She finished behind Mariya Savinova in London, but since then the Russian has been named in a doping report and could receive a lifetime ban.

“Every athlete’s dream is to win a medal, especially in the Olympics,” said Semenya, whose winning time was two seconds adrift of the world record of 1:53:28, set by Jarmila Kratochvilova, running for Czechoslovakia, in July 1983.

Meanwhile, English Premier League club West Ham have announced an agreement with Nigerian side FC Ifeanyi Ubah to become their first African partner.

Based in Nnewi, Anambra State, and currently competing in Nigeria’s top-flight league, FC Ifeanyi Ubah are to become the Hammers’ Official Nigerian Football Club Partner, the English club announced.

The two clubs will work on a number of projects – led by FC Ifeanyi Ubah – from coaching initiatives to establishing grass roots football programmes in Nigeria, all with a view to improving the standard of football across the region.

“This ground-breaking partnership serves to further emphasize our growing international profile, bringing the famous West Ham United name to Africa for the first time in a partnership context,” West Ham United Vice-Chairman Baroness Brady said.

Patrick Ifeanyi Ubah, owner of FC Ifeanyi Ubah and Chairman of Capital Oil and Gas, believes the partnership will have a positive impact on his club – both on and off the pitch.